The main-belt asteroid (493) Griseldis was probably hit by another object last March. The results were reported on November 12 at the annual meeting of the Division for Planetary Sciences of the American Astronomical Society ...

Scientists hoping to build a telescope that will allow them to see 13 billion light years away, giving them a look into the early years of the universe, are facing opposition from Native Hawaiian groups who say the construction ...

On a telescope at the summit of Mauna Kea in Hawaii, it's not easy to put in a full night of work. At 14,000 feet, you're operating at only 60% of the oxygen available at sea level, which makes concentrating difficult. Top ...

An apparent cyberattack Sunday temporarily disrupted the main website of Thirty Meter Telescope, the organization trying to construct one of the world's largest telescopes near the summit of Mauna Kea on Hawaii's Big Island.